Finding the Fourth Proportional to 1,277,804.20, 1,763,936.58 and 825,315.88
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Solution
The fourth proportional to 1,277,804.20, 1,763,936.58 and 825,315.88 is: 1,139,301.99
Step by Step Solution
- Step 1: Write the proportion equation
1,277,804.20 : 1,763,936.58 = 825,315.88 : x - Step 2: Convert to fraction form
1,277,804.20/1,763,936.58 = 825,315.88/x - Step 3: Cross multiply
1,277,804.20x = 1,763,936.58 × 825,315.88 - Step 4: Simplify right side
1,277,804.20x = 1,455,804,870,786.89 - Step 5: Solve for x
x = 1,455,804,870,786.89/1,277,804.20 - Step 6: Final answer
x = 1,139,301.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.